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A small metallic sphere with charge 0.1 `mu`C is suspended by an insulating massless string in a region of electric field of strength 500 `NC^(-1)`. Calculate the tension in the string if mass of the sphere is 0.8 grams and the electric field is directed in a downward direction.

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`7.89xx10^(-3)` N
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MODERN PUBLICATION-ELECTRIC CHARGES AND FIELDS -Practice Problems
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  16. A small ball of mass m and charge q is suspended through a string in u...

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